130 NEW YORK STATE MUSEUM 



331-43 in the above named young apple orchard and under con- 

 ditions previously described. The condition of these trees so 

 far as noted at the time of treatment, Dec. 11, 1901, was as fol- 

 lows. Trees 317, 320, 321, 322, 323, 324, 325, 326, 327, 333, 334, 

 335, 336, 338, 340, 341 and 342 were extremely badly infested with 

 the scale; trees 319, 330, 332 and 343 were very badly infested, 

 and trees 316 and 331 were rather badly infested; there were 

 only a few on tree 339 while trees 315, 318, 328 and 337 were 

 dead. 34 other fruit trees on an adjoining place were also 

 sprayed with this solution, except that a little of Good's tobacco 

 whale oil soap no. 6, 2 pounds to the gallon, remained in the barrel 

 when the solution of no. 3 was added. There was however very 

 little of the tobacco whale oil soap solution, and the effect would 

 hardly be modified. 



The examination of the above mentioned trees Mar. 10, 1902, 

 showed that apparently all of the scale insects had been killed 

 by the treatment, and so far as noted no injury to the trees 

 occurred. The same was true of a later examination made May 6, 

 and there was no material change in conditions so far as noted 

 June 12. An examination of the appletrees Nov. 11, 1902, by 

 my assistant, Mr Walker, showed that a few of the trees were 

 very badly infested, some badly infested and others in good 

 condition. The application appears to have checked the pest 

 very thoroughly till toward the latter end of the season, when 

 the few which survived the treatment were able to multiply 

 and reinfest the trees to a considerable extent. 



Good's tobacco whale oil soap no. 6. This compound was used 

 in a solution of 2 pounds to the gallon and was applied to 11 

 small appletrees in the above described orchard and to nearly 20 

 greengage plumtrees on the northern boundary of the same. 

 The condition of the appletrees at the time of spraying was as 

 follows. Trees numbered 303, 307, 308 and 313 were very very 

 badly infested. Trees 305, 310 and 314 were dead except in the 

 case of 310, which had developed a few suckers; 311 was nearly 

 dead. There were a few scales to be seen on trees 304, 306 and 

 312, and 309 and 311 were very badly infested. 



An examination of these trees Mar. 10 showed that apparently 

 every scale insect had been destroyed by the application, and 

 the same was true of a later examination May 6. This condi- 



